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-rw-r--r--src/common/util.c23
1 files changed, 15 insertions, 8 deletions
diff --git a/src/common/util.c b/src/common/util.c
index 1818b4f19e..7c715fb3cd 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -100,6 +100,8 @@
#undef MALLOC_ZERO_WORKS
#endif
+#include <ctype.h>
+
/* =====
* Memory management
* ===== */
@@ -1110,16 +1112,21 @@ string_is_valid_hostname(const char *string)
continue;
}
- do {
- if ((*c >= 'a' && *c <= 'z') ||
- (*c >= 'A' && *c <= 'Z') ||
- (*c >= '0' && *c <= '9') ||
- (*c == '-') || (*c == '_'))
+ if (c_sl_idx == c_sl_len - 1) {
+ do {
+ result = isalpha(*c);
c++;
- else
- result = 0;
- } while (result && *c);
+ } while (result && *c);
+ } else {
+ do {
+ result = (isalnum(*c) || (*c == '-') || (*c == '_'));
+ c++;
+ } while (result > 0 && *c);
+ }
+ if (result == 0) {
+ break;
+ }
} SMARTLIST_FOREACH_END(c);
SMARTLIST_FOREACH_BEGIN(components, char *, c) {